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本文介绍了根据一氧化氮和臭氧的气相发光反应原理而研制的氮氧化物分析器。化学发光反应室在正压条件下工作;采用石墨化玻璃炭做为二氧化氮转换成一氧化氮的转换剂。仪器可以分别测量总氮氧化物(NO_x=NO+NO_2)和一氧化氮,测量范围为0—8毫克/立方米,最小可检量为20微克/立方米。
This paper presents an oxynitride analyzer developed based on the gas-phase luminescence reaction of nitric oxide and ozone. The chemiluminescent reaction chamber is operated under positive pressure; graphitized glassy carbon is used as a converter for conversion of nitrogen dioxide to nitrogen monoxide. The instrument measures nitrogen oxides (NO x = NO + NO 2) and nitric oxide (NO x) respectively, with a range of 0-8 mg / m 3 and a minimum of 20 μg / m 3.